package com.itheima.reggie.common;

import com.sun.prism.shader.Solid_TextureFirstPassLCD_AlphaTest_Loader;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.sql.SQLIntegrityConstraintViolationException;


/**
 * ClassName: GlobalExceptionHandler
 * Package: com.itheima.reggie.common
 * Description: 全局异常处理器，本质是通过AOP做异常拦截然后统一处理
 *
 * @Author www.youkewang.top
 * @Create 2023-10-23 2:59
 * @Version 1.0
 */
@ControllerAdvice(annotations = {RestController.class, Controller.class})  // 拦截RestController和Controller
@ResponseBody  // 返回JSON数据
@Slf4j
public class GlobalExceptionHandler {
    /**
     * 异常处理方法
     *
     * @return
     */
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String> exceptionHandler(SQLIntegrityConstraintViolationException ex) {
        log.error(ex.getMessage());

        // 细化异常
        if (ex.getMessage().contains("Duplicate entry")) {
            String[] split = ex.getMessage().split(" ");
            String msg = split[2] + "已存在";
            return R.error(msg);
        }
        return R.error("未知错误");
    }

    @ExceptionHandler(CustomException.class)
    public R<String> exceptionHandler (CustomException ex) {
        log.error(ex.getMessage());
        return R.error(ex.getMessage());
    }
}
